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Journal of Operator Theory

Volume 34, Issue 2, Fall 1995  pp. 213-216.

The numerical range of a Toeplitz operator with harmonic symbol

Authors: J.K. Thukral
Author institution:Department of Mathematics, Shri Ram College of Commerce, University of Delhi, Delhi - 110007, INDIA

Summary: A complete description of the numerical range of a Toeplitz operator acting on the Bergman space of the unit disk with harmonic symbol is given.

Keywords: Toeplitz operator, numerical range, spectrum, self-adjoint, normal, subnormal, convexoid, harmonic.


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